Isophenergan
Brand names,
Isophenergan
Analogs
Isophenergan
Brand Names Mixture
- Phenergan VC Expectorant Syrup (Phenylephrine hydrochloride + Potassium guaiacol sulphonate + Promethazine hydrochloride)
Isophenergan
Chemical_Formula
C17H20N2S
Isophenergan
RX_link
http://www.rxlist.com/cgi/generic3/phenergan.htm
Isophenergan
fda sheet
Isophenergan
msds (material safety sheet)
Isophenergan
Synthesis Reference
Charpentier, U.S. Pat. 2,503,451 (1950)
Isophenergan
Molecular Weight
284.42 g/mol
Isophenergan
Melting Point
60oC
Isophenergan
H2O Solubility
Freely soluble
Isophenergan
State
Solid
Isophenergan
LogP
4.946
Isophenergan
Dosage Forms
Tablet; Suppository; Opthalmic drops; Syrup
Isophenergan
Indication
For the treatment of allergic disorders, itching, nausea and vomiting.
Isophenergan
Pharmacology
Promethazine, a phenothiazine, is an H1-antagonist with anticholinergic, sedative, and antiemetic effects and some local anesthetic properties. Promethazine is used as an antiemetic or to prevent motion sickness.
Isophenergan
Absorption
On average, 88% of a promethazine dose is absorbed after oral administration; however, the absolute bioavailability is only 25% because of first-pass clearance.
Isophenergan
side effects and Toxicity
Symptoms of overdose include mild depression of the central nervous system and cardiovascular system to profound hypotension, respiratory depression, unconsciousness, and sudden death. Other reported reactions include hyperreflexia, hypertonia, ataxia, athetosis, and extensor-plantar reflexes (Babinski reflex). LD50=55mg/kg (I.V. in mice)
Isophenergan
Patient Information
Isophenergan
Organisms Affected
Humans and other mammals